[That's some very impressive finger pointing. Alas that it's wasted on Sebastian, who just looks completely unimpressed.]
Mr Stilinski. [How to put this.]
When it comes to opinions, yours matter to me when they concern The Bakery. [Ie, Sebastian 100% does not care what Stiles thinks about anything outside of that. At all. "I'll never let you live it down" is about the least threatening thing Stiles could say to him.]
If you believe something is objectively the matter, however, I will listen. [No, Sebastian, you won't. You literally just completely dismissed it when he tried to tell you what's wrong...]
Yet surely you are aware that, as my master, the young master is of utmost importance to me. And that we spend hours of a typical day together?